14139811 has 4 divisors (see below), whose sum is σ = 16159792. Its totient is φ = 12119832.

The previous prime is 14139773. The next prime is 14139821. The reversal of 14139811 is 11893141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11893141 = 13 ⋅914857.

It is a cyclic number.

It is not a de Polignac number, because 14139811 - 2⁷ = 14139683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14139811.

It is not an unprimeable number, because it can be changed into a prime (14139821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009980 + ... + 1009993.

It is an arithmetic number, because the mean of its divisors is an integer number (4039948).

Almost surely, 2^14139811 is an apocalyptic number.

14139811 is a deficient number, since it is larger than the sum of its proper divisors (2019981).

14139811 is an equidigital number, since it uses as much as digits as its factorization.

14139811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019980.

The product of its digits is 864, while the sum is 28.

The square root of 14139811 is about 3760.2940044629. The cubic root of 14139811 is about 241.8138666172.

The spelling of 14139811 in words is "fourteen million, one hundred thirty-nine thousand, eight hundred eleven".